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pmTool is part of Activity Monitor, and kernel_task is the top level process in the OS, since it's the parent process of launchd, which is the parent process of everything else. I find that pmTool takes up a lot of memory when Activity Monitor is running for long periods of time, but closing and re-opening it should do the trick. As far as I know, the only thing to do about kernel_task is to restart.

ahh nice. yea i always have activity monitor up and running. thanks!
 
edit, OnyX is here: http://www.macupdate.com/info.php/id/11582
Ok. installed OnyX. First, when it asked to verify start up volume it comes up with the following error.

Second, I ran all the maintenance steps and cleaned all the caches. I also restarted the computer twice. That freed up a lot of memory. I will now see how long this lasts.

huh, maybe u should do a repair disk, wait until somebody can confirm that if u need to backup files b4 a disk repair.
 
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